fs/cifs/cifsproto.h

   1 /*
   2  *   fs/cifs/cifsproto.h
   3  *
   4  *   Copyright (c) International Business Machines  Corp., 2002,2008
   5  *   Author(s): Steve French (sfrench@us.ibm.com)
   6  *
   7  *   This library is free software; you can redistribute it and/or modify
   8  *   it under the terms of the GNU Lesser General Public License as published
   9  *   by the Free Software Foundation; either version 2.1 of the License, or
  10  *   (at your option) any later version.
  11  *
  12  *   This library is distributed in the hope that it will be useful,
  13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
  15  *   the GNU Lesser General Public License for more details.
  16  *
  17  *   You should have received a copy of the GNU Lesser General Public License
  18  *   along with this library; if not, write to the Free Software
  19  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  20  */
  21 #ifndef _CIFSPROTO_H
  22 #define _CIFSPROTO_H
  23 #include <linux/nls.h>
  24 #include "trace.h"
  25
  26 struct statfs;
  27 struct smb_vol;
  28 struct smb_rqst;
  29
  30 /*
  31  *****************************************************************
  32  * All Prototypes
  33  *****************************************************************
  34  */
  35
  36 extern struct smb_hdr *cifs_buf_get(void);
  37 extern void cifs_buf_release(void *);
  38 extern struct smb_hdr *cifs_small_buf_get(void);
  39 extern void cifs_small_buf_release(void *);
  40 extern void free_rsp_buf(int, void *);
  41 extern int smb_send(struct TCP_Server_Info *, struct smb_hdr *,
  42                         unsigned int /* length */);
  43 extern unsigned int _get_xid(void);
  44 extern void _free_xid(unsigned int);
  45 #define get_xid()                                               \
  46 ({                                                              \
  47         unsigned int __xid = _get_xid();                                \
  48         cifs_dbg(FYI, "CIFS VFS: in %s as Xid: %u with uid: %d\n",      \
  49                  __func__, __xid,                                       \
  50                  from_kuid(&init_user_ns, current_fsuid()));            \
  51         trace_smb3_enter(__xid, __func__);                      \
  52         __xid;                                                  \
  53 })
  54
  55 #define free_xid(curr_xid)                                      \
  56 do {                                                            \
  57         _free_xid(curr_xid);                                    \
  58         cifs_dbg(FYI, "CIFS VFS: leaving %s (xid = %u) rc = %d\n",      \
  59                  __func__, curr_xid, (int)rc);                  \
  60         if (rc)                                                 \
  61                 trace_smb3_exit_err(curr_xid, __func__, (int)rc);       \
  62         else                                                    \
  63                 trace_smb3_exit_done(curr_xid, __func__);       \
  64 } while (0)
  65 extern int init_cifs_idmap(void);
  66 extern void exit_cifs_idmap(void);
  67 extern int init_cifs_spnego(void);
  68 extern void exit_cifs_spnego(void);
  69 extern char *build_path_from_dentry(struct dentry *);
  70 extern char *build_path_from_dentry_optional_prefix(struct dentry *direntry,
  71                                                     bool prefix);
  72 extern char *cifs_build_path_to_root(struct smb_vol *vol,
  73                                      struct cifs_sb_info *cifs_sb,
  74                                      struct cifs_tcon *tcon,
  75                                      int add_treename);
  76 extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
  77 extern char *cifs_compose_mount_options(const char *sb_mountdata,
  78                 const char *fullpath, const struct dfs_info3_param *ref,
  79                 char **devname);
  80 /* extern void renew_parental_timestamps(struct dentry *direntry);*/
  81 extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer,
  82                                         struct TCP_Server_Info *server);
  83 extern void DeleteMidQEntry(struct mid_q_entry *midEntry);
  84 extern void cifs_delete_mid(struct mid_q_entry *mid);
  85 extern void cifs_wake_up_task(struct mid_q_entry *mid);
  86 extern int cifs_handle_standard(struct TCP_Server_Info *server,
  87                                 struct mid_q_entry *mid);
  88 extern int cifs_discard_remaining_data(struct TCP_Server_Info *server);
  89 extern int cifs_call_async(struct TCP_Server_Info *server,
  90                         struct smb_rqst *rqst,
  91                         mid_receive_t *receive, mid_callback_t *callback,
  92                         mid_handle_t *handle, void *cbdata, const int flags);
  93 extern int cifs_send_recv(const unsigned int xid, struct cifs_ses *ses,
  94                           struct smb_rqst *rqst, int *resp_buf_type,
  95                           const int flags, struct kvec *resp_iov);
  96 extern int SendReceive(const unsigned int /* xid */ , struct cifs_ses *,
  97                         struct smb_hdr * /* input */ ,
  98                         struct smb_hdr * /* out */ ,
  99                         int * /* bytes returned */ , const int);
 100 extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
 101                             char *in_buf, int flags);
 102 extern struct mid_q_entry *cifs_setup_request(struct cifs_ses *,
 103                                 struct smb_rqst *);
 104 extern struct mid_q_entry *cifs_setup_async_request(struct TCP_Server_Info *,
 105                                                 struct smb_rqst *);
 106 extern int cifs_check_receive(struct mid_q_entry *mid,
 107                         struct TCP_Server_Info *server, bool log_error);
 108 extern int cifs_wait_mtu_credits(struct TCP_Server_Info *server,
 109                                  unsigned int size, unsigned int *num,
 110                                  unsigned int *credits);
 111 extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *,
 112                         struct kvec *, int /* nvec to send */,
 113                         int * /* type of buf returned */, const int flags,
 114                         struct kvec * /* resp vec */);
 115 extern int SendReceiveBlockingLock(const unsigned int xid,
 116                         struct cifs_tcon *ptcon,
 117                         struct smb_hdr *in_buf ,
 118                         struct smb_hdr *out_buf,
 119                         int *bytes_returned);
 120 extern int cifs_reconnect(struct TCP_Server_Info *server);
 121 extern int checkSMB(char *buf, unsigned int len, struct TCP_Server_Info *srvr);
 122 extern bool is_valid_oplock_break(char *, struct TCP_Server_Info *);
 123 extern bool backup_cred(struct cifs_sb_info *);
 124 extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
 125 extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
 126                             unsigned int bytes_written);
 127 extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, bool);
 128 extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
 129 extern unsigned int smbCalcSize(void *buf, struct TCP_Server_Info *server);
 130 extern int decode_negTokenInit(unsigned char *security_blob, int length,
 131                         struct TCP_Server_Info *server);
 132 extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
 133 extern void cifs_set_port(struct sockaddr *addr, const unsigned short int port);
 134 extern int map_smb_to_linux_error(char *buf, bool logErr);
 135 extern void header_assemble(struct smb_hdr *, char /* command */ ,
 136                             const struct cifs_tcon *, int /* length of
 137                             fixed section (word count) in two byte units */);
 138 extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
 139                                 struct cifs_ses *ses,
 140                                 void **request_buf);
 141 extern enum securityEnum select_sectype(struct TCP_Server_Info *server,
 142                                 enum securityEnum requested);
 143 extern int CIFS_SessSetup(const unsigned int xid, struct cifs_ses *ses,
 144                           const struct nls_table *nls_cp);
 145 extern struct timespec cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
 146 extern u64 cifs_UnixTimeToNT(struct timespec);
 147 extern struct timespec cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
 148                                       int offset);
 149 extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);
 150 extern int cifs_get_writer(struct cifsInodeInfo *cinode);
 151 extern void cifs_put_writer(struct cifsInodeInfo *cinode);
 152 extern void cifs_done_oplock_break(struct cifsInodeInfo *cinode);
 153 extern int cifs_unlock_range(struct cifsFileInfo *cfile,
 154                              struct file_lock *flock, const unsigned int xid);
 155 extern int cifs_push_mandatory_locks(struct cifsFileInfo *cfile);
 156
 157 extern struct cifsFileInfo *cifs_new_fileinfo(struct cifs_fid *fid,
 158                                               struct file *file,
 159                                               struct tcon_link *tlink,
 160                                               __u32 oplock);
 161 extern int cifs_posix_open(char *full_path, struct inode **inode,
 162                            struct super_block *sb, int mode,
 163                            unsigned int f_flags, __u32 *oplock, __u16 *netfid,
 164                            unsigned int xid);
 165 void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
 166 extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
 167                                      FILE_UNIX_BASIC_INFO *info,
 168                                      struct cifs_sb_info *cifs_sb);
 169 extern void cifs_dir_info_to_fattr(struct cifs_fattr *, FILE_DIRECTORY_INFO *,
 170                                         struct cifs_sb_info *);
 171 extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
 172 extern struct inode *cifs_iget(struct super_block *sb,
 173                                struct cifs_fattr *fattr);
 174
 175 extern int cifs_get_inode_info(struct inode **inode, const char *full_path,
 176                                FILE_ALL_INFO *data, struct super_block *sb,
 177                                int xid, const struct cifs_fid *fid);
 178 extern int cifs_get_inode_info_unix(struct inode **pinode,
 179                         const unsigned char *search_path,
 180                         struct super_block *sb, unsigned int xid);
 181 extern int cifs_set_file_info(struct inode *inode, struct iattr *attrs,
 182                               unsigned int xid, char *full_path, __u32 dosattr);
 183 extern int cifs_rename_pending_delete(const char *full_path,
 184                                       struct dentry *dentry,
 185                                       const unsigned int xid);
 186 extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
 187                               struct cifs_fattr *fattr, struct inode *inode,
 188                               const char *path, const struct cifs_fid *pfid);
 189 extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64,
 190                                         kuid_t, kgid_t);
 191 extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
 192                                         const char *, u32 *);
 193 extern struct cifs_ntsd *get_cifs_acl_by_fid(struct cifs_sb_info *,
 194                                                 const struct cifs_fid *, u32 *);
 195 extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
 196                                 const char *, int);
 197
 198 extern void dequeue_mid(struct mid_q_entry *mid, bool malformed);
 199 extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,
 200                                  unsigned int to_read);
 201 extern int cifs_read_page_from_socket(struct TCP_Server_Info *server,
 202                                         struct page *page,
 203                                         unsigned int page_offset,
 204                                         unsigned int to_read);
 205 extern int cifs_setup_cifs_sb(struct smb_vol *pvolume_info,
 206                                struct cifs_sb_info *cifs_sb);
 207 extern int cifs_match_super(struct super_block *, void *);
 208 extern void cifs_cleanup_volume_info(struct smb_vol *pvolume_info);
 209 extern struct smb_vol *cifs_get_volume_info(char *mount_data,
 210                                             const char *devname, bool is_smb3);
 211 extern int cifs_mount(struct cifs_sb_info *, struct smb_vol *);
 212 extern void cifs_umount(struct cifs_sb_info *);
 213 extern void cifs_mark_open_files_invalid(struct cifs_tcon *tcon);
 214 extern void cifs_reopen_persistent_handles(struct cifs_tcon *tcon);
 215
 216 extern bool cifs_find_lock_conflict(struct cifsFileInfo *cfile, __u64 offset,
 217                                     __u64 length, __u8 type,
 218                                     struct cifsLockInfo **conf_lock,
 219                                     int rw_check);
 220 extern void cifs_add_pending_open(struct cifs_fid *fid,
 221                                   struct tcon_link *tlink,
 222                                   struct cifs_pending_open *open);
 223 extern void cifs_add_pending_open_locked(struct cifs_fid *fid,
 224                                          struct tcon_link *tlink,
 225                                          struct cifs_pending_open *open);
 226 extern void cifs_del_pending_open(struct cifs_pending_open *open);
 227 extern void cifs_put_tcp_session(struct TCP_Server_Info *server,
 228                                  int from_reconnect);
 229 extern void cifs_put_tcon(struct cifs_tcon *tcon);
 230
 231 #if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
 232 extern void cifs_dfs_release_automount_timer(void);
 233 #else /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
 234 #define cifs_dfs_release_automount_timer()      do { } while (0)
 235 #endif /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
 236
 237 void cifs_proc_init(void);
 238 void cifs_proc_clean(void);
 239
 240 extern void cifs_move_llist(struct list_head *source, struct list_head *dest);
 241 extern void cifs_free_llist(struct list_head *llist);
 242 extern void cifs_del_lock_waiters(struct cifsLockInfo *lock);
 243
 244 extern int cifs_negotiate_protocol(const unsigned int xid,
 245                                    struct cifs_ses *ses);
 246 extern int cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
 247                               struct nls_table *nls_info);
 248 extern int cifs_enable_signing(struct TCP_Server_Info *server, bool mnt_sign_required);
 249 extern int CIFSSMBNegotiate(const unsigned int xid, struct cifs_ses *ses);
 250
 251 extern int CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
 252                     const char *tree, struct cifs_tcon *tcon,
 253                     const struct nls_table *);
 254
 255 extern int CIFSFindFirst(const unsigned int xid, struct cifs_tcon *tcon,
 256                 const char *searchName, struct cifs_sb_info *cifs_sb,
 257                 __u16 *searchHandle, __u16 search_flags,
 258                 struct cifs_search_info *psrch_inf,
 259                 bool msearch);
 260
 261 extern int CIFSFindNext(const unsigned int xid, struct cifs_tcon *tcon,
 262                 __u16 searchHandle, __u16 search_flags,
 263                 struct cifs_search_info *psrch_inf);
 264
 265 extern int CIFSFindClose(const unsigned int xid, struct cifs_tcon *tcon,
 266                         const __u16 search_handle);
 267
 268 extern int CIFSSMBQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
 269                         u16 netfid, FILE_ALL_INFO *pFindData);
 270 extern int CIFSSMBQPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
 271                             const char *search_Name, FILE_ALL_INFO *data,
 272                             int legacy /* whether to use old info level */,
 273                             const struct nls_table *nls_codepage, int remap);
 274 extern int SMBQueryInformation(const unsigned int xid, struct cifs_tcon *tcon,
 275                                const char *search_name, FILE_ALL_INFO *data,
 276                                const struct nls_table *nls_codepage, int remap);
 277
 278 extern int CIFSSMBUnixQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
 279                         u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
 280 extern int CIFSSMBUnixQPathInfo(const unsigned int xid,
 281                         struct cifs_tcon *tcon,
 282                         const unsigned char *searchName,
 283                         FILE_UNIX_BASIC_INFO *pFindData,
 284                         const struct nls_table *nls_codepage, int remap);
 285
 286 extern int CIFSGetDFSRefer(const unsigned int xid, struct cifs_ses *ses,
 287                            const char *search_name,
 288                            struct dfs_info3_param **target_nodes,
 289                            unsigned int *num_of_nodes,
 290                            const struct nls_table *nls_codepage, int remap);
 291
 292 extern int get_dfs_path(const unsigned int xid, struct cifs_ses *ses,
 293                         const char *old_path,
 294                         const struct nls_table *nls_codepage,
 295                         unsigned int *num_referrals,
 296                         struct dfs_info3_param **referrals, int remap);
 297 extern int parse_dfs_referrals(struct get_dfs_referral_rsp *rsp, u32 rsp_size,
 298                                unsigned int *num_of_nodes,
 299                                struct dfs_info3_param **target_nodes,
 300                                const struct nls_table *nls_codepage, int remap,
 301                                const char *searchName, bool is_unicode);
 302 extern void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon,
 303                                  struct cifs_sb_info *cifs_sb,
 304                                  struct smb_vol *vol);
 305 extern int CIFSSMBQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
 306                         struct kstatfs *FSData);
 307 extern int SMBOldQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
 308                         struct kstatfs *FSData);
 309 extern int CIFSSMBSetFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon,
 310                         __u64 cap);
 311
 312 extern int CIFSSMBQFSAttributeInfo(const unsigned int xid,
 313                         struct cifs_tcon *tcon);
 314 extern int CIFSSMBQFSDeviceInfo(const unsigned int xid, struct cifs_tcon *tcon);
 315 extern int CIFSSMBQFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon);
 316 extern int CIFSSMBQFSPosixInfo(const unsigned int xid, struct cifs_tcon *tcon,
 317                         struct kstatfs *FSData);
 318
 319 extern int CIFSSMBSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
 320                         const char *fileName, const FILE_BASIC_INFO *data,
 321                         const struct nls_table *nls_codepage,
 322                         int remap_special_chars);
 323 extern int CIFSSMBSetFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
 324                         const FILE_BASIC_INFO *data, __u16 fid,
 325                         __u32 pid_of_opener);
 326 extern int CIFSSMBSetFileDisposition(const unsigned int xid,
 327                                      struct cifs_tcon *tcon,
 328                                      bool delete_file, __u16 fid,
 329                                      __u32 pid_of_opener);
 330 #if 0
 331 extern int CIFSSMBSetAttrLegacy(unsigned int xid, struct cifs_tcon *tcon,
 332                         char *fileName, __u16 dos_attributes,
 333                         const struct nls_table *nls_codepage);
 334 #endif /* possibly unneeded function */
 335 extern int CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,
 336                          const char *file_name, __u64 size,
 337                          struct cifs_sb_info *cifs_sb, bool set_allocation);
 338 extern int CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon,
 339                               struct cifsFileInfo *cfile, __u64 size,
 340                               bool set_allocation);
 341
 342 struct cifs_unix_set_info_args {
 343         __u64   ctime;
 344         __u64   atime;
 345         __u64   mtime;
 346         __u64   mode;
 347         kuid_t  uid;
 348         kgid_t  gid;
 349         dev_t   device;
 350 };
 351
 352 extern int CIFSSMBUnixSetFileInfo(const unsigned int xid,
 353                                   struct cifs_tcon *tcon,
 354                                   const struct cifs_unix_set_info_args *args,
 355                                   u16 fid, u32 pid_of_opener);
 356
 357 extern int CIFSSMBUnixSetPathInfo(const unsigned int xid,
 358                                   struct cifs_tcon *tcon, const char *file_name,
 359                                   const struct cifs_unix_set_info_args *args,
 360                                   const struct nls_table *nls_codepage,
 361                                   int remap);
 362
 363 extern int CIFSSMBMkDir(const unsigned int xid, struct cifs_tcon *tcon,
 364                         const char *name, struct cifs_sb_info *cifs_sb);
 365 extern int CIFSSMBRmDir(const unsigned int xid, struct cifs_tcon *tcon,
 366                         const char *name, struct cifs_sb_info *cifs_sb);
 367 extern int CIFSPOSIXDelFile(const unsigned int xid, struct cifs_tcon *tcon,
 368                         const char *name, __u16 type,
 369                         const struct nls_table *nls_codepage,
 370                         int remap_special_chars);
 371 extern int CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon,
 372                           const char *name, struct cifs_sb_info *cifs_sb);
 373 extern int CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,
 374                          const char *from_name, const char *to_name,
 375                          struct cifs_sb_info *cifs_sb);
 376 extern int CIFSSMBRenameOpenFile(const unsigned int xid, struct cifs_tcon *tcon,
 377                                  int netfid, const char *target_name,
 378                                  const struct nls_table *nls_codepage,
 379                                  int remap_special_chars);
 380 extern int CIFSCreateHardLink(const unsigned int xid, struct cifs_tcon *tcon,
 381                               const char *from_name, const char *to_name,
 382                               struct cifs_sb_info *cifs_sb);
 383 extern int CIFSUnixCreateHardLink(const unsigned int xid,
 384                         struct cifs_tcon *tcon,
 385                         const char *fromName, const char *toName,
 386                         const struct nls_table *nls_codepage,
 387                         int remap_special_chars);
 388 extern int CIFSUnixCreateSymLink(const unsigned int xid,
 389                         struct cifs_tcon *tcon,
 390                         const char *fromName, const char *toName,
 391                         const struct nls_table *nls_codepage, int remap);
 392 extern int CIFSSMBUnixQuerySymLink(const unsigned int xid,
 393                         struct cifs_tcon *tcon,
 394                         const unsigned char *searchName, char **syminfo,
 395                         const struct nls_table *nls_codepage, int remap);
 396 extern int CIFSSMBQuerySymLink(const unsigned int xid, struct cifs_tcon *tcon,
 397                                __u16 fid, char **symlinkinfo,
 398                                const struct nls_table *nls_codepage);
 399 extern int CIFSSMB_set_compression(const unsigned int xid,
 400                                    struct cifs_tcon *tcon, __u16 fid);
 401 extern int CIFS_open(const unsigned int xid, struct cifs_open_parms *oparms,
 402                      int *oplock, FILE_ALL_INFO *buf);
 403 extern int SMBLegacyOpen(const unsigned int xid, struct cifs_tcon *tcon,
 404                         const char *fileName, const int disposition,
 405                         const int access_flags, const int omode,
 406                         __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
 407                         const struct nls_table *nls_codepage, int remap);
 408 extern int CIFSPOSIXCreate(const unsigned int xid, struct cifs_tcon *tcon,
 409                         u32 posix_flags, __u64 mode, __u16 *netfid,
 410                         FILE_UNIX_BASIC_INFO *pRetData,
 411                         __u32 *pOplock, const char *name,
 412                         const struct nls_table *nls_codepage, int remap);
 413 extern int CIFSSMBClose(const unsigned int xid, struct cifs_tcon *tcon,
 414                         const int smb_file_id);
 415
 416 extern int CIFSSMBFlush(const unsigned int xid, struct cifs_tcon *tcon,
 417                         const int smb_file_id);
 418
 419 extern int CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,
 420                         unsigned int *nbytes, char **buf,
 421                         int *return_buf_type);
 422 extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
 423                         unsigned int *nbytes, const char *buf);
 424 extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
 425                         unsigned int *nbytes, struct kvec *iov, const int nvec);
 426 extern int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon,
 427                                  const char *search_name, __u64 *inode_number,
 428                                  const struct nls_table *nls_codepage,
 429                                  int remap);
 430
 431 extern int cifs_lockv(const unsigned int xid, struct cifs_tcon *tcon,
 432                       const __u16 netfid, const __u8 lock_type,
 433                       const __u32 num_unlock, const __u32 num_lock,
 434                       LOCKING_ANDX_RANGE *buf);
 435 extern int CIFSSMBLock(const unsigned int xid, struct cifs_tcon *tcon,
 436                         const __u16 netfid, const __u32 netpid, const __u64 len,
 437                         const __u64 offset, const __u32 numUnlock,
 438                         const __u32 numLock, const __u8 lockType,
 439                         const bool waitFlag, const __u8 oplock_level);
 440 extern int CIFSSMBPosixLock(const unsigned int xid, struct cifs_tcon *tcon,
 441                         const __u16 smb_file_id, const __u32 netpid,
 442                         const loff_t start_offset, const __u64 len,
 443                         struct file_lock *, const __u16 lock_type,
 444                         const bool waitFlag);
 445 extern int CIFSSMBTDis(const unsigned int xid, struct cifs_tcon *tcon);
 446 extern int CIFSSMBEcho(struct TCP_Server_Info *server);
 447 extern int CIFSSMBLogoff(const unsigned int xid, struct cifs_ses *ses);
 448
 449 extern struct cifs_ses *sesInfoAlloc(void);
 450 extern void sesInfoFree(struct cifs_ses *);
 451 extern struct cifs_tcon *tconInfoAlloc(void);
 452 extern void tconInfoFree(struct cifs_tcon *);
 453
 454 extern int cifs_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server,
 455                    __u32 *pexpected_response_sequence_number);
 456 extern int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
 457                           __u32 *);
 458 extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
 459 extern int cifs_verify_signature(struct smb_rqst *rqst,
 460                                  struct TCP_Server_Info *server,
 461                                 __u32 expected_sequence_number);
 462 extern int SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *,
 463                         const struct nls_table *);
 464 extern int setup_ntlm_response(struct cifs_ses *, const struct nls_table *);
 465 extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
 466 extern void cifs_crypto_secmech_release(struct TCP_Server_Info *server);
 467 extern int calc_seckey(struct cifs_ses *);
 468 extern int generate_smb30signingkey(struct cifs_ses *);
 469 extern int generate_smb311signingkey(struct cifs_ses *);
 470
 471 #ifdef CONFIG_CIFS_WEAK_PW_HASH
 472 extern int calc_lanman_hash(const char *password, const char *cryptkey,
 473                                 bool encrypt, char *lnm_session_key);
 474 #endif /* CIFS_WEAK_PW_HASH */
 475 #ifdef CONFIG_CIFS_DNOTIFY_EXPERIMENTAL /* unused temporarily */
 476 extern int CIFSSMBNotify(const unsigned int xid, struct cifs_tcon *tcon,
 477                         const int notify_subdirs, const __u16 netfid,
 478                         __u32 filter, struct file *file, int multishot,
 479                         const struct nls_table *nls_codepage);
 480 #endif /* was needed for dnotify, and will be needed for inotify when VFS fix */
 481 extern int CIFSSMBCopy(unsigned int xid,
 482                         struct cifs_tcon *source_tcon,
 483                         const char *fromName,
 484                         const __u16 target_tid,
 485                         const char *toName, const int flags,
 486                         const struct nls_table *nls_codepage,
 487                         int remap_special_chars);
 488 extern ssize_t CIFSSMBQAllEAs(const unsigned int xid, struct cifs_tcon *tcon,
 489                         const unsigned char *searchName,
 490                         const unsigned char *ea_name, char *EAData,
 491                         size_t bufsize, struct cifs_sb_info *cifs_sb);
 492 extern int CIFSSMBSetEA(const unsigned int xid, struct cifs_tcon *tcon,
 493                 const char *fileName, const char *ea_name,
 494                 const void *ea_value, const __u16 ea_value_len,
 495                 const struct nls_table *nls_codepage,
 496                 struct cifs_sb_info *cifs_sb);
 497 extern int CIFSSMBGetCIFSACL(const unsigned int xid, struct cifs_tcon *tcon,
 498                         __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
 499 extern int CIFSSMBSetCIFSACL(const unsigned int, struct cifs_tcon *, __u16,
 500                         struct cifs_ntsd *, __u32, int);
 501 extern int CIFSSMBGetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
 502                 const unsigned char *searchName,
 503                 char *acl_inf, const int buflen, const int acl_type,
 504                 const struct nls_table *nls_codepage, int remap_special_chars);
 505 extern int CIFSSMBSetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
 506                 const unsigned char *fileName,
 507                 const char *local_acl, const int buflen, const int acl_type,
 508                 const struct nls_table *nls_codepage, int remap_special_chars);
 509 extern int CIFSGetExtAttr(const unsigned int xid, struct cifs_tcon *tcon,
 510                         const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
 511 extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
 512 extern bool couldbe_mf_symlink(const struct cifs_fattr *fattr);
 513 extern int check_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
 514                               struct cifs_sb_info *cifs_sb,
 515                               struct cifs_fattr *fattr,
 516                               const unsigned char *path);
 517 extern int mdfour(unsigned char *, unsigned char *, int);
 518 extern int E_md4hash(const unsigned char *passwd, unsigned char *p16,
 519                         const struct nls_table *codepage);
 520 extern int SMBencrypt(unsigned char *passwd, const unsigned char *c8,
 521                         unsigned char *p24);
 522
 523 void cifs_readdata_release(struct kref *refcount);
 524 int cifs_async_readv(struct cifs_readdata *rdata);
 525 int cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid);
 526
 527 int cifs_async_writev(struct cifs_writedata *wdata,
 528                       void (*release)(struct kref *kref));
 529 void cifs_writev_complete(struct work_struct *work);
 530 struct cifs_writedata *cifs_writedata_alloc(unsigned int nr_pages,
 531                                                 work_func_t complete);
 532 struct cifs_writedata *cifs_writedata_direct_alloc(struct page **pages,
 533                                                 work_func_t complete);
 534 void cifs_writedata_release(struct kref *refcount);
 535 int cifs_query_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
 536                           struct cifs_sb_info *cifs_sb,
 537                           const unsigned char *path, char *pbuf,
 538                           unsigned int *pbytes_read);
 539 int cifs_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
 540                            struct cifs_sb_info *cifs_sb,
 541                            const unsigned char *path, char *pbuf,
 542                            unsigned int *pbytes_written);
 543 int __cifs_calc_signature(struct smb_rqst *rqst,
 544                         struct TCP_Server_Info *server, char *signature,
 545                         struct shash_desc *shash);
 546 enum securityEnum cifs_select_sectype(struct TCP_Server_Info *,
 547                                         enum securityEnum);
 548 struct cifs_aio_ctx *cifs_aio_ctx_alloc(void);
 549 void cifs_aio_ctx_release(struct kref *refcount);
 550 int setup_aio_ctx_iter(struct cifs_aio_ctx *ctx, struct iov_iter *iter, int rw);
 551 void smb2_cached_lease_break(struct work_struct *work);
 552
 553 int cifs_alloc_hash(const char *name, struct crypto_shash **shash,
 554                     struct sdesc **sdesc);
 555 void cifs_free_hash(struct crypto_shash **shash, struct sdesc **sdesc);
 556
 557 extern void rqst_page_get_length(struct smb_rqst *rqst, unsigned int page,
 558                                 unsigned int *len, unsigned int *offset);
 559
 560 #endif                  /* _CIFSPROTO_H */